Taking the stage Monday in Sterling at an event for Vice President Joe Biden, Kaine told supporters he is the clear choice for bi-partisanship.

"We can't have the nation we want if the Senate and Congress is gridlocked. We have to fix it," Kaine urged.

The latest NBC News/Wall Street Journal poll taken late last week shows Kaine holding a three point lead, which is very close to the poll's margin of error. The poll says four percent of voters are still undecided.